Hydrotherapy spa



FIG. 1 is a perspective view of a spa showing my new design;

FIG. 2 is another perspective view thereof, taken from a different angle;

FIG. 3 is a plan view thereof;

FIG. 4 is a cross-sectional view thereof, taken along line 4--4 of FIG. 3; and

FIG. 5 is a cross-sectional view thereof, taken along line 5--5 of FIG. 3. 

The ornamental design for a hydrotherapy spa, as shown. 